Home / 20,062.09-27,685.31-11,109.67

Finding the Fourth Proportional to 20,062.09, 27,685.31 and 11,109.67

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Solution

The fourth proportional to 20,062.09, 27,685.31 and 11,109.67 is: 15,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.09 : 27,685.31 = 11,109.67 : x
  2. Step 2: Convert to fraction form
    20,062.09/27,685.31 = 11,109.67/x
  3. Step 3: Cross multiply
    20,062.09x = 27,685.31 × 11,109.67
  4. Step 4: Simplify right side
    20,062.09x = 307,574,657.95
  5. Step 5: Solve for x
    x = 307,574,657.95/20,062.09
  6. Step 6: Final answer
    x = 15,331.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.